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. 2006 May 10;79(1):85–99. doi: 10.1086/504814

Table 1. .

Frequencies of Individual Trait Components and Trait Groups and the Sex Proportions of Those Affected, According to IHS Criteria,20 in the Study Sample

Trait or Trait Group
Corresponding to IHS Criteria
n Percentage
of Total
Percentage
Male
Percentage
Female
Full criteriaa: 225 52.3 26.2 73.8
 Attack length 241 56.0 29.5 70.5
Vascular headache criteriaa: 322 74.9 33.9 66.1
 Unilateral headache 327 76.0 34.3 65.7
 Pulsating headache 235 54.7 27.2 72.8
 Intensity, moderate and/or severe: 315 73.3 32.4 67.6
  Unbearable 109 31.6 27.5 72.5
  Severe 136 31.6 28.7 71.3
  Moderate 70 16.3 47.1 52.9
 Aggravated by physical activity 239 55.6 29.7 70.3
Associated symptomsa: 298 69.3 30.5 69.5
 Nausea and/or vomitinga: 266 61.9 30.1 69.9
  Nausea 266 61.9 30.1 69.9
  Vomiting 173 40.2 31.8 68.2
 Photo- and phonophobiaa: 229 53.3 25.8 74.2
  Photophobia 265 61.6 30.6 69.4
  Phonophobia 234 54.4 26.5 73.5
a

A trait group.

HHS Vulnerability Disclosure